This charger will effectively auto-adjust the charging current based on the cells chemistry or condition. You may find that cells are also charged at 0.5A initially and then increased to 1A mid-way through the charge. This is a safety feature - and helps protect excessive heat build and prolong the life of the cells.
This charger is capable of charging two cells at 1A and is compatible with the new 20700 & 21700 formats (see below for more compatible formats).
This is a USB powered charger so it can be plugged into any of your existing AC USB wall adapter plugs (e.g. Apple, Samsung, etc.).